You asked what Saucony PWRRUN, SPEEDROLL and FORMFIT mean and which shoe holds which foam. We answer with every foam tier explained, two tables mapping foams to shoes, and five picks with one winner per tier. Foam is the engine of a running shoe: it decides cushioning, bounce and weight, and Saucony tiers its engines from dependable EVA blends to PEBA superfoams. Our Saucony buying guide turns this technology into shoe picks by runner type.
We combined hands-on wear notes with side-by-side comparisons and 1,300+ verified user reports across the five tier picks. What follows names the foam, the material, the feel, the shoe and the flaw.
What is Saucony PWRRUN?
PWRRUN is the family name for all four Saucony midsole foams, not a single material. It starts with a dependable EVA blend for daily miles and climbs through a TPU-based upgrade to two PEBA-based superfoams for speed and racing. Each step up buys more bounce and less weight at a higher price and often a shorter lifespan. The tiers below show what each foam is, how it feels and which shoes carry it.
PWRRUN vs PWRRUN+ vs PWRRUN PB vs PWRRUN HG
| Foam | Material | Feel | Best for | Models |
|---|---|---|---|---|
| PWRRUN | EVA blend | Balanced, protective | Daily miles, stability, trail | Guide 18, Kinvara 16, Peregrine 14, Endorphin Shift 3 |
| PWRRUN+ | TPU-based | Softer, bouncier | High-mileage daily | Ride 18 |
| PWRRUN PB | PEBA-based | Springy, propulsive | Tempo, max cushion, racing | Triumph 22, Hurricane 24, Xodus Ultra 4, Endorphin Speed 5 |
| PWRRUN HG | Supercritical PEBA | Maximum rebound | Race day | Endorphin Pro 4, Endorphin Elite 2 |
PWRRUN is the foundation: reliable EVA-blend cushioning for workhorse shoes, protective rather than flashy. PWRRUN+ is the durable daily upgrade in TPU, noticeably softer and more flexible for high mileage. PWRRUN PB is the PEBA superfoam: Saucony claims 88 percent energy return in a package about 50 percent lighter than traditional EVA, which gives the bouncy propulsive feel. PWRRUN HG is the top shelf, also PEBA-based but built by a supercritical process: Saucony claims 95 percent energy return for maximum race-day rebound. Our PB foam explainer covers the superfoam science in depth.
Which Saucony has which foam
| Model | Foam | Plate or frame | Review |
|---|---|---|---|
| Guide 18 | PWRRUN | CenterPath, no plate | Review |
| Kinvara 16 | PWRRUN | No plate | Review |
| Peregrine 14 | PWRRUN | Rock plate | Review |
| Endorphin Shift 3 | PWRRUN | SPEEDROLL, no plate | Review |
| Ride 18 | PWRRUN+ | No plate | Review |
| Triumph 22 | PWRRUN PB | Wide stable platform, no plate | Review |
| Hurricane 24 | PWRRUN PB | PWRRUN frame, CenterPath | Review |
| Xodus Ultra 4 | PWRRUN PB core | PWRRUN frame, Vibram grip | Review |
| Endorphin Pro 4 | PWRRUN HG over PWRRUN PB | Carbon plate | Review |
| Endorphin Elite 2 | PWRRUN EVA over PWRRUN PB | Carbon plate | Review |
| Endorphin Speed 5 | PWRRUN PB | Nylon plate | Review |
The Endorphin Speed 5 is the exception that puts PWRRUN PB under a nylon plate instead of carbon, which keeps the price and the stiffness lower than the Pro 4. Framed models share a pattern: the Hurricane 24 and Xodus Ultra 4 mount a PB core inside a stable PWRRUN frame for bounce with guardrails.
SPEEDROLL technology explained
SPEEDROLL is the shape of the midsole, not a material. A curved sole with a stiffer forefoot rolls the foot from landing to toe-off the way a wheel rolls, instead of slapping flat each step. The design trims the energy each stride costs, which shows most when legs tire late in long runs. Saucony pairs the geometry with plates in the Endorphin line: a flexible nylon plate in the Speed 5 for forgiving snap, a full carbon plate in the Pro 4 and Elite 2 for maximum propulsion. Runners who love a flat natural ride often fight the tipping sensation and should stay with non-rockered daily shoes.
FORMFIT explained
FORMFIT is the fit system that keeps the foot connected to the foam and geometry above. It works in three layers. The sockliner cushions and contours to the foot shape. The midsole is sculpted along natural foot lines, especially at the heel and arch, for a secure base. The engineered upper wraps and adapts as the foot moves through each stride. Together the layers feel like a custom cradle rather than a box, with lockdown but without pinching. Shoppers with very wide feet should still check widths model by model, since a great system cannot stretch a narrow last.
Which Saucony foam should you buy?
Saucony Guide 18: Best PWRRUN stability shoe
Saucony
Saucony Guide 18
Best for: Best PWRRUN stability shoe
$150 retail · Amazon $140-150
4.1/5 (220 user reports)
- stable ride
- cushioned
- breathable
Fit: true to size Sizing guide →
The Guide 18 is the best showcase for standard PWRRUN. It suits mild to moderate overpronators who want dependable cushioning with CenterPath guidance, over a 35 mm heel and 29 mm forefoot for a 6 mm drop. It carries a 4.1 editorial rating across 220 reports with 80 percent stability approval, and the foam durability matters less here than the honest price.
Fit is true to size in normal to wide with options available. It lists at $150 retail, usually $140 to $150 on Amazon, at 272 grams. The ride feels firm and bulky next to superfoams, foam life fades near 200 miles, and wet traction is weak. Bounce seekers should pass. Our full Guide 18 review has the stability notes.
Saucony Ride 18: Best PWRRUN+ daily trainer
Saucony
Saucony Ride 18
Best for: Best PWRRUN+ daily trainer
$145 retail · Amazon $107.95 - $145.00
4.5/5 (200 user reports)
- Lightweight feel
- Excellent breathability
- Responsive cushioning
Fit: True to size, but snugger than Ride 17; consider sizing up half size if preferring roomier fit or for wide feet Sizing guide →
The Ride 18 is the best showcase for PWRRUN+. It suits beginners and one-shoe runners who want softer high-mileage comfort than standard PWRRUN gives, with TPU-based bounce that survives hundreds of miles. At 259 grams and a 4.5 editorial rating across 200 reports, it is the default daily pick in this guide.
Sizing runs true to size though snugger than the Ride 17, so roomy-fit seekers should go half a size up, with wide options available. It lists at $145 retail, usually $107.95 to $145 on Amazon. Outsole and upper wear show early at 70 percent durability approval, and wet traction disappoints. Plush seekers should step up to PB. Our full Ride 18 review has the mileage notes.
Saucony Triumph 22: Best PWRRUN PB cushioning
Saucony
Saucony Triumph 22
Best for: Best PWRRUN PB cushioning
$160 retail · Amazon $110-$160
4.6/5 (300 user reports)
- maximum cushioning
- comfortable upper
- durable construction
Fit: true to size; consider half size down if between sizes Sizing guide →
The Triumph 22 is the best showcase for PWRRUN PB comfort. It suits recovery days and long runs where maximum softness matters, stacking 37 mm in the heel and 27 mm in the forefoot for a 10 mm drop. It holds 90 percent cushioning approval across 300 reports at a 4.6 editorial rating, with 85 percent durability approval behind it.
Fit is true to size with a roomy toe box and wide options, though between-size runners may size down half. It lists at $160 retail, usually $110 to $160 on Amazon, at 286 grams. The upper breathes poorly and the bulk feels clunky at pace. Tempo runners should pass. Our full Triumph 22 review has the softness notes.
Saucony Endorphin Pro 4: Best PWRRUN HG racer
Saucony
Saucony Endorphin Pro 4
Best for: Best PWRRUN HG racer
$250 retail · Amazon $239.95
4.5/5 (402 user reports)
- Responsive ride
- Comfortable cushioning
- Good stability
Fit: True to size, but size up half if between sizes or for wider feet Sizing guide →
The Pro 4 is the best showcase for PWRRUN HG. It suits marathoners and half-marathoners who want a comfortable protective racer, layering HG over a PB base around a full carbon plate with SPEEDROLL geometry. The stack peaks at 39.3 mm in the heel with an 8.8 mm drop, at just 220 grams and a 4.5 editorial rating across 402 reports with 90 percent stability approval.
Go with your normal size, though between-size and wider feet should go half a size up. It lists at $250 retail, usually $239.95 on Amazon. The narrow fit pinches broad feet, sole peeling is the known issue at 70 percent durability approval, and short races have lighter options. Budget racers should pass. Our full Pro 4 review has the race notes.
Saucony Hurricane 24: Best stable PWRRUN PB shoe
Saucony
Saucony Hurricane 24
Best for: Best stable PWRRUN PB shoe
$160 retail
4.2/5 (250 user reports)
- Plush cushioning
- Stable ride
- Comfortable upper
Fit: True to size, but slightly small; consider half size up for wide feet Sizing guide →
The Hurricane 24 is the best framed showcase for PWRRUN PB. It suits runners who dislike traditional posts but want max-cushioned stability, mounting PB foam on a PWRRUN frame with CenterPath guidance. The 38 mm heel stack with a 6 mm drop rides plush and propulsive across 250 reports at a 4.2 editorial rating, with 90 percent cushioning and 85 percent stability approval.
Sizing is true to size though slightly small, so wide feet should go half a size up, with wide available. It lists at $160 retail, usually $99.95 to $160 on Amazon, at 302 grams. Weight is the obvious cost at 50 percent weight approval, breathability is poor, and speed work is out. Tempo runners should pass. Our full Hurricane 24 review has the stability notes.
How to choose
Pick by run, feel and wallet:
- For dependable daily miles: take PWRRUN in the Guide 18 for stability or the Kinvara 16 for light speed.
- For soft high mileage: take PWRRUN+ in the Ride 18.
- For plush recovery: take PWRRUN PB in the Triumph 22.
- For stable softness: take framed PWRRUN PB in the Hurricane 24.
- For race day: take PWRRUN HG in the Pro 4 or Elite 2.
- For trails: take PWRRUN in the Peregrine 14 or framed PB in the Xodus Ultra 4.
- For tempo versatility: take PB with a nylon plate in the Endorphin Speed 5.
Final verdict
PWRRUN covers daily work, PWRRUN+ softens the miles, PWRRUN PB adds the bounce, and PWRRUN HG saves race day, with SPEEDROLL rolling every stride and FORMFIT holding the foot to the platform. Match the tier to the run first and the price second. Shoppers who want the full lineup by runner type should read our Saucony buying guide next.
